12 for £5 in one of my local shops, yet another one down the road are a 99p each, dont ask me how he does em so cheap i dont know, and the guy is real friendly and often throws an extra one in if hes caught too many, and they have all sizes so you get a good shoal.
Mind you he does do 2 clown loaches for £6 and dwarf gouramis at £2 small size that is
I can't beat that, but my LFS used to sell the little ones 3 for a dollar and larger ones were 2 for a dollar. Not the highest quality color (which run for about $3 a pop), but still very nice.